Coordinated disaster recovery production takeover operations

Abstract

For coordinated disaster reovery, a reconciliation process is performed for resolving intersecting and non-intersecting data amongst disaster recovery systems for takeover operations. An ownership synchronization process is coordinated for replica cartridges via the reconciliation process at the disaster recovery systems. The disaster recovery systems continue as a replication target for source systems and as a backup target for local backup applications.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates in general to computers, and more particularly to coordinated disaster recovery production takeover operations.[0003]2. Description of the Related Art[0004]In today's society, computer systems are commonplace. Computer systems may be found in the workplace, at home, or at school. Computer systems may include data storage systems, or disk storage systems, to process and store data. Data storage systems, or disk storage systems, are utilized to process and store data. A storage system may include one or more disk drives. These data processing systems typically require a large amount of data storage. Customer data, or data generated by users within the data processing system, occupies a great portion of this data storage. Many of these computer systems include virtual storage components.[0005]Virtual storage components are found in a variety of computing environments. A typical virtual storage...

AI Technical Summary

Benefits of technology

[0007]As previously mentioned, modern standards typically denote a 3-4 sites (many-to-many) topology group for replicating data between the storage systems in order to maintain three to four copies of the data in the storage systems. Within the many-to-many topologies, challenges arise in assuring takeover processes, which are apart of the disaster recovery (DR) plan, avoid creating situations that reduce productivity and efficiencies. Such challenges include preventing possible data corruption scenarios, particularly when involving synchronization processes between multiple interlaced systems, and / or situations where users end up with wrong cartridges at a particular production site. Such inefficiencies reduce performance and may compromise the integrity of maintaining copies of data within a storage system.

Problems solved by technology

These data processing systems typically require a large amount of data storage.

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